154kV 지중 POF 케이블의 부식방지(腐蝕防止)에 관한 연구(硏究)

A Study on the Corrosion Control and Protection of 154kV Underground Pipe-type Oil Filled (POF) Cable

KEPCO has experienced eight oil leakage failures due to POF cable corrosion in the 154KV underground POF cable transmission line since the line was operated in 1976. Experimentally, We have verified that the cause of the failure is electrolytic corrosion of the cable owing to subway leakage current. For the countermeasure, We adopted the total Cathodic Protection System by the use of Victim Anode, Forced Drainage Method and Impressed Current Method with polarization cell.